Dell 4100 User Manual page 48

Option
dev_enable=
lun_enable=
tag_disable
io_combine
max_sectors
max_tags
max_nontags
read_after_write
instrumentation
* On the AIC-7880 and optional AHA-2940W, these values become FFFF.
NOTE: For the full name of an abbreviation or acronym used in this table, see the Glossary.
Table 3-3. load Command Line Options
Values Default
* FF
00-FF
* 01
00-FF
* 00
0-FF
0-255 16
0-255 64
0-255 8
0-255 2
0, 1, 2 2
0, 1 0
(Continued)
Description
Allows you to enable the driver's registration of SCSI
devices on a per-target basis. This enable bit mask is
entered in hexadecimal format. (See the following
subsection, "Bit Mask Options.")
Enables scanning for specific LUNs on all targets. (See
the following subsection, "Bit Mask Options," for details
on creating bit masks.) For example, a value of 7 causes
the driver to scan for LUNs 0, 1, and 2 on all targets. The
default value of 01 causes the driver to scan LUN 0 only.
Disables tagged queuing for specific targets. This disable
bit mask is entered in hexadecimal format. (See the
following subsection, "Bit Mask Options.")
Specifies the maximum number of segments in a scatter/
gather list.
Specifies the maximum number of sectors in a single
scatter/gather segment.
Specifies the maximum number of tagged commands.
Specifies the maximum number of nontagged commands.
Specifies the default verify mode: 0 = No verify on writes,
1 = Software verify, 2 = Hardware verify.
If 1 is entered, the instrumentation option is enabled. The
driver maintains internal instrumentation data for use by
I/O management applications. Instrumentation can also be
enabled by the I/O management application, so inclusion
of this option is not necessary.
Installing and Configuring SCSI Drivers 3-15